/* Estilos partilhados por paginas de conhecimento (cluster de autoridade).
   Redesign editorial premium com hero visual, stats destacadas e fotos intercaladas.
   Cada pagina do cluster usa /tokens.css + /conhecimento.css. */

:root {
  --k-max: 780px;
  --k-wide: 1160px;
  --k-line: rgba(101, 74, 186, 0.10);
  --k-line-strong: rgba(101, 74, 186, 0.22);
  --k-callout: #F7F4FF;
  --k-code-bg: #F3EEFF;
  --k-hero-dark: rgba(27, 20, 64, 0.72);
}

html, body {
  margin: 0;
  padding: 0;
  background: var(--cream);
  color: var(--ink);
  min-height: 100vh;
}
body {
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  font-size: 17px;
  line-height: 1.7;
}

/* ====== Top bar ====== */
.k-topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(251, 247, 238, 0.92);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--k-line);
}
.k-topbar-inner {
  max-width: var(--k-wide);
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.k-topbar a { text-decoration: none; color: inherit; }
.k-topbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}
.k-topbar-brand img {
  height: 60px;
  width: auto;
  display: block;
  transition: transform 200ms;
}
.k-topbar-brand:hover img { transform: scale(1.02); }
.k-nav {
  display: flex;
  gap: 24px;
  font-size: 13px;
  color: var(--graphite);
  letter-spacing: 0.02em;
}
.k-nav a { transition: color 150ms; }
.k-nav a:hover { color: var(--lav-deep); }

/* ====== Hero visual — foto de fundo + gradient + conteúdo overlay ====== */
.k-hero {
  position: relative;
  min-height: 560px;
  padding: 88px 24px 72px;
  color: #fff;
  overflow: hidden;
  isolation: isolate;
  background: linear-gradient(135deg, var(--ink) 0%, var(--lav-deep) 100%);
}
.k-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("/assets/photos/refs/guia-hero.jpg");
  background-image: url("/assets/photos/refs/guia-hero.webp"), url("/assets/photos/refs/guia-hero.jpg");
  background-size: cover;
  background-position: center 30%;
  opacity: 0.42;
  z-index: -2;
  filter: saturate(1.05);
}
.k-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(27, 20, 64, 0.4) 0%, rgba(27, 20, 64, 0.85) 100%),
    radial-gradient(ellipse at 20% 20%, rgba(197, 175, 247, 0.35), transparent 60%);
  z-index: -1;
}
.k-hero-inner {
  max-width: var(--k-max);
  margin: 0 auto;
}
.k-hero .k-breadcrumbs {
  padding: 0 0 22px;
  color: rgba(255, 255, 255, 0.7);
  font-size: 13px;
}
.k-hero .k-breadcrumbs a { color: rgba(255, 255, 255, 0.85); }
.k-hero .k-breadcrumbs a:hover { color: #fff; text-decoration: underline; }
.k-hero .k-breadcrumbs span[aria-current] { color: rgba(255, 255, 255, 0.9); }
.k-hero .k-eyebrow {
  font-family: var(--font-display);
  font-size: 12px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.75);
  margin: 0 0 22px;
}
.k-hero h1 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(38px, 6vw, 60px);
  line-height: 1.05;
  letter-spacing: -0.012em;
  color: #fff;
  margin: 0 0 26px;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.25);
}
.k-hero .k-head-lede {
  font-size: 21px;
  line-height: 1.55;
  color: rgba(255, 255, 255, 0.9);
  margin: 0 0 34px;
  max-width: 700px;
}
.k-hero .k-meta {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.72);
  padding: 20px 0 0;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}
.k-hero .k-meta strong { color: #fff; font-weight: 700; }

/* ====== Stats bar destacada logo abaixo do hero ====== */
.k-stats-bar {
  max-width: var(--k-wide);
  margin: -48px auto 0;
  padding: 0 24px;
  position: relative;
  z-index: 2;
}
.k-stats-bar-inner {
  background: #fff;
  border-radius: 20px;
  padding: 34px 32px;
  box-shadow: 0 24px 60px rgba(27, 20, 64, 0.14);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  border: 1px solid var(--k-line);
}
.k-stat {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 0 16px;
  position: relative;
}
.k-stat + .k-stat::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 1px;
  background: var(--k-line);
}
.k-stat-num {
  font-family: var(--font-display);
  font-size: clamp(28px, 3.5vw, 40px);
  color: var(--lav-deep);
  font-weight: 400;
  letter-spacing: -0.01em;
  line-height: 1;
  margin: 0 0 6px;
}
.k-stat-num em {
  font-size: 0.55em;
  font-style: normal;
  color: var(--graphite);
  margin-left: 4px;
  vertical-align: middle;
}
.k-stat-label {
  font-size: 13px;
  color: var(--graphite);
  line-height: 1.4;
  margin: 0;
}

/* ====== Breadcrumbs (fora do hero — pra páginas do cluster) ====== */
.k-breadcrumbs {
  max-width: var(--k-wide);
  margin: 0 auto;
  padding: 22px 24px 0;
  font-size: 13px;
  color: var(--muted);
}
.k-breadcrumbs a {
  color: var(--lav-deep);
  text-decoration: none;
}
.k-breadcrumbs a:hover { text-decoration: underline; }
.k-breadcrumbs span[aria-current] { color: var(--graphite); }

/* ====== Article header — versão simples (páginas menores do cluster) ====== */
.k-head {
  max-width: var(--k-max);
  margin: 0 auto;
  padding: 42px 24px 32px;
}
.k-eyebrow {
  font-family: var(--font-display);
  font-size: 11px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--lav-deep);
  margin: 0 0 16px;
}
.k-head h1 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(32px, 5vw, 52px);
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 0 0 20px;
}
.k-head-lede {
  font-size: 20px;
  line-height: 1.55;
  color: var(--graphite);
  margin: 0 0 28px;
}
.k-meta {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--muted);
  padding: 16px 0;
  border-top: 1px solid var(--k-line);
  border-bottom: 1px solid var(--k-line);
}
.k-meta strong { color: var(--graphite); font-weight: 600; }

/* ====== Sumario navegavel ====== */
.k-toc {
  max-width: var(--k-max);
  margin: 60px auto 0;
  padding: 30px 32px;
  background: var(--paper);
  border: 1px solid var(--k-line);
  border-radius: 16px;
  position: relative;
  box-shadow: 0 8px 24px rgba(27, 20, 64, 0.04);
}
.k-toc::before {
  content: "Sumário";
  display: block;
  font-family: var(--font-display);
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--lav-deep);
  margin-bottom: 16px;
}
.k-toc ol {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: toc;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 28px;
}
.k-toc li {
  counter-increment: toc;
  font-size: 15px;
  line-height: 1.5;
}
.k-toc li::before {
  content: counter(toc, decimal-leading-zero);
  color: var(--lav);
  font-family: var(--font-display);
  font-size: 11px;
  margin-right: 10px;
  letter-spacing: 0.14em;
  font-weight: 600;
}
.k-toc a {
  color: var(--graphite);
  text-decoration: none;
  transition: color 150ms;
}
.k-toc a:hover { color: var(--lav-deep); }

/* ====== Corpo do artigo ====== */
.k-article {
  max-width: var(--k-max);
  margin: 0 auto;
  padding: 48px 24px 20px;
}
.k-article > section {
  padding: 28px 0 14px;
  scroll-margin-top: 90px;
}
.k-article h2 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(28px, 3.6vw, 38px);
  line-height: 1.15;
  color: var(--ink);
  margin: 40px 0 22px;
  letter-spacing: -0.008em;
  scroll-margin-top: 90px;
}
.k-article h2::before {
  content: "";
  display: block;
  width: 48px;
  height: 4px;
  background: linear-gradient(90deg, var(--lav-deep), var(--lav));
  margin-bottom: 22px;
  border-radius: 3px;
}
.k-article h3 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 23px;
  line-height: 1.3;
  color: var(--ink);
  margin: 32px 0 12px;
}
.k-article p {
  font-size: 17px;
  line-height: 1.75;
  color: var(--graphite);
  margin: 0 0 18px;
}
.k-article strong { color: var(--ink); font-weight: 600; }
.k-article a {
  color: var(--lav-deep);
  text-decoration: underline;
  text-decoration-color: rgba(101, 74, 186, 0.4);
  text-underline-offset: 3px;
}
.k-article a:hover { text-decoration-color: var(--lav-deep); }
.k-article ul, .k-article ol {
  padding-left: 0;
  margin: 0 0 22px;
  color: var(--graphite);
  list-style: none;
}
.k-article li {
  margin-bottom: 12px;
  line-height: 1.7;
  padding-left: 26px;
  position: relative;
}
.k-article ul li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 12px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--lav-deep);
  opacity: 0.9;
}
.k-article ol {
  counter-reset: item;
}
.k-article ol li {
  counter-increment: item;
}
.k-article ol li::before {
  content: counter(item, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 4px;
  font-family: var(--font-display);
  font-size: 12px;
  color: var(--lav-deep);
  font-weight: 700;
  letter-spacing: 0.06em;
}

/* ====== Foto intercalada ====== */
.k-figure {
  margin: 44px 0;
  padding: 0;
}
.k-figure picture, .k-figure img {
  display: block;
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  border-radius: 20px;
  box-shadow: 0 20px 50px rgba(27, 20, 64, 0.14);
}
.k-figure-caption {
  margin: 14px 0 0;
  font-size: 13px;
  color: var(--muted);
  font-style: italic;
  text-align: center;
}

/* ====== Callout / destaque premium ====== */
.k-callout {
  margin: 36px 0;
  padding: 28px 30px 26px;
  background: linear-gradient(135deg, var(--k-callout) 0%, #FDFCFF 100%);
  border: 1px solid var(--k-line);
  border-left: 4px solid var(--lav-deep);
  border-radius: 16px;
  position: relative;
  overflow: hidden;
}
.k-callout::before {
  content: "";
  position: absolute;
  top: -20px;
  right: -20px;
  width: 90px;
  height: 90px;
  background: radial-gradient(circle, var(--lav-soft), transparent 65%);
  opacity: 0.4;
  pointer-events: none;
}
.k-callout p { margin: 0; color: var(--ink); font-size: 16px; line-height: 1.7; position: relative; }
.k-callout p + p { margin-top: 12px; }
.k-callout-tag {
  font-family: var(--font-display);
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--lav-deep);
  margin-bottom: 10px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
}
.k-callout-tag::before {
  content: "✦";
  font-size: 14px;
  color: var(--lav);
}

/* ====== FAQ collapsivel ====== */
.k-faq {
  margin: 40px 0 20px;
  background: var(--paper);
  border-radius: 16px;
  border: 1px solid var(--k-line);
  overflow: hidden;
}
.k-faq details {
  border-bottom: 1px solid var(--k-line);
  padding: 22px 26px;
  transition: background 200ms;
}
.k-faq details:last-child { border-bottom: none; }
.k-faq details[open] { background: var(--k-callout); }
.k-faq summary {
  font-family: var(--font-display);
  font-size: 19px;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: baseline;
  line-height: 1.4;
  transition: color 180ms;
}
.k-faq summary:hover { color: var(--lav-deep); }
.k-faq summary::-webkit-details-marker { display: none; }
.k-faq summary::after {
  content: "+";
  font-family: var(--font-display);
  font-size: 24px;
  color: var(--lav-deep);
  transition: transform 240ms;
  flex-shrink: 0;
  display: inline-block;
}
.k-faq details[open] summary::after {
  content: "−";
  transform: none;
}
.k-faq details > p, .k-faq details > div {
  margin: 14px 0 0;
  color: var(--graphite);
  font-size: 16px;
  line-height: 1.7;
}
.k-faq details > p:first-of-type { padding-top: 4px; }

/* ====== Card cluster (proximas leituras) ====== */
.k-cluster {
  max-width: var(--k-wide);
  margin: 60px auto 0;
  padding: 44px 24px;
}
.k-cluster h3 {
  font-family: var(--font-display);
  font-size: 26px;
  color: var(--ink);
  margin: 0 0 26px;
  font-weight: 400;
  text-align: center;
}
.k-cluster-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
  max-width: 1040px;
  margin: 0 auto;
}
.k-cluster-card {
  background: var(--paper);
  border-radius: 20px;
  padding: 26px 26px 24px;
  text-decoration: none;
  color: inherit;
  border: 1.5px solid var(--k-line);
  transition: transform 240ms cubic-bezier(0.16, 1, 0.3, 1), border-color 240ms, box-shadow 240ms;
  position: relative;
  display: flex;
  flex-direction: column;
}
.k-cluster-card::after {
  content: "→";
  position: absolute;
  right: 26px;
  bottom: 22px;
  font-family: var(--font-display);
  color: var(--lav-deep);
  font-size: 20px;
  transition: transform 240ms;
}
.k-cluster-card:hover {
  transform: translateY(-4px);
  border-color: var(--lav-soft);
  box-shadow: 0 14px 34px rgba(101, 74, 186, 0.15);
}
.k-cluster-card:hover::after {
  transform: translateX(4px);
}
.k-cluster-card strong {
  display: block;
  font-family: var(--font-display);
  font-size: 18px;
  color: var(--ink);
  margin-bottom: 8px;
  font-weight: 400;
  padding-right: 20px;
}
.k-cluster-card span {
  font-size: 14px;
  color: var(--graphite);
  line-height: 1.55;
}

/* ====== CTA final do artigo ====== */
.k-cta {
  max-width: var(--k-wide);
  margin: 72px auto 60px;
  padding: 0 24px;
}
.k-cta-inner {
  background: linear-gradient(135deg, var(--lav-deep) 0%, var(--ink) 100%);
  border-radius: 24px;
  padding: 56px 40px;
  text-align: center;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.k-cta-inner::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 10%, rgba(197, 175, 247, 0.3), transparent 55%),
    radial-gradient(ellipse at 80% 90%, rgba(197, 175, 247, 0.2), transparent 55%);
  pointer-events: none;
}
.k-cta h3 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(24px, 3.4vw, 32px);
  color: #fff;
  margin: 0 0 14px;
  position: relative;
}
.k-cta p {
  font-size: 17px;
  color: rgba(255, 255, 255, 0.86);
  margin: 0 0 28px;
  line-height: 1.65;
  position: relative;
}
.k-cta-btns {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  position: relative;
}
.k-btn {
  display: inline-block;
  padding: 15px 30px;
  border-radius: 999px;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: transform 200ms cubic-bezier(0.16, 1, 0.3, 1), box-shadow 200ms;
  letter-spacing: 0.01em;
}
.k-btn-primary {
  background: #fff;
  color: var(--lav-deep);
}
.k-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 28px rgba(255, 255, 255, 0.3);
}
.k-btn-ghost {
  background: transparent;
  color: #fff;
  border: 1.5px solid rgba(255, 255, 255, 0.5);
}
.k-btn-ghost:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: #fff;
}

/* ====== Footer minimal ====== */
.k-foot {
  border-top: 1px solid var(--k-line);
  padding: 40px 24px 60px;
  text-align: center;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
  background: var(--paper);
}
.k-foot a { color: var(--lav-deep); text-decoration: none; }
.k-foot a:hover { text-decoration: underline; }
.k-foot-brand {
  font-family: var(--font-display);
  color: var(--ink);
  font-size: 16px;
  margin: 0 0 8px;
}

/* ====== Responsivo ====== */
@media (max-width: 900px) {
  .k-stats-bar-inner { grid-template-columns: repeat(2, 1fr); gap: 20px 16px; padding: 26px 24px; }
  .k-stat + .k-stat::before { display: none; }
}
@media (max-width: 720px) {
  body { font-size: 16px; }
  .k-hero { padding: 60px 20px 90px; min-height: 480px; }
  .k-hero h1 { font-size: clamp(30px, 8vw, 40px); }
  .k-hero .k-head-lede { font-size: 17px; }
  .k-stats-bar { margin-top: -56px; padding: 0 16px; }
  .k-stats-bar-inner { padding: 22px 18px; }
  .k-stat { padding: 0 4px; }
  .k-stat-num { font-size: 28px; }
  .k-stat-label { font-size: 12px; }
  .k-head { padding: 30px 20px 20px; }
  .k-article { padding: 32px 20px 12px; }
  .k-article h2 { margin-top: 32px; }
  .k-toc { margin-top: 44px; padding: 24px 22px; }
  .k-toc ol { grid-template-columns: 1fr; gap: 8px; }
  .k-cluster { margin: 40px 0 0; padding: 32px 16px; }
  .k-cta { margin: 44px 0 40px; padding: 0 16px; }
  .k-cta-inner { padding: 40px 26px; }
  .k-nav { display: none; }
  .k-topbar-inner { padding: 14px 20px; }
  .k-topbar-brand img { height: 46px; }
  .k-figure picture, .k-figure img { border-radius: 16px; }
}